Clean up usage-statistics display code (ShowUsage and friends). StatFp

Tom Lane <tgl@sss.pgh.pa.us>

Commit: f6ee99a062071ec03be69a4ec7b2b9a282455060
Author: Tom Lane <tgl@sss.pgh.pa.us>
Date: 2001-11-10T23:51:14Z
Releases: 7.2.1
Clean up usage-statistics display code (ShowUsage and friends).  StatFp
is gone, usage messages now go through elog(DEBUG).

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